In-mast furler; to buy or not to buy; - Page 6 - SailNet Community
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post #51 of 56 Old 01-26-2011
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Nicely said Rich.

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post #52 of 56 Old 01-26-2011
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I took my sailing lessons on boats with conventional mains, but purchased a 34' Tartan with in mast furling.

We have made two offshore trips and on one encountered significant storm. For a newbie I would have been very nervous trying to reef the main in those conditions, as the squall came up quickly. Howerver with the in mast furler, the sail was brought in within seconds without leaving the cockpit.

Also for me in learning I can change the amount of main up very easily by myself and experiment in different levels of wind. I doubt I would do that with a conventional reefing system (just too lazy)

I am sure there are compromises as there is less sail and no battens, but the advantages at this point in my skill set seem to outway the disadvantages.

I have yet to have any problem with furling or unfurling, but the boat is rel new (2006)

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post #53 of 56 Old 01-26-2011
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It is my understanding that you roll in what you need to "flatten" and "reduce" the sail for the conditions. I think the comparison to slab reef points doesn't really work as this system is variable - set what you need.

I suspect that these systems are not targeted at the "purist" sailor which equates to a tiny minority of the sailing population. Some of these roller furler mains are getting some really good reviews on their upwind and overall performance and speeds that work for me. Couple that with ease of use and it's pretty attractive for most sailors.

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post #54 of 56 Old 03-29-2011
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A thought regarding weight aloft: Permanent weight aloft will slow roll due to inertia at the masthead, but will also cause more heeling. If you really want it in a particular situation, it is easy to hoist a weight aloft. Another alternative would be to put a section of PVC pipe inside the mast at the top, and provide to pump water aloft when needed. This would be aerodynamically clean, lightweight when not needed, and much more socially acceptable than hoisting a nervous passenger up the mast in a storm.
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post #55 of 56 Old 04-24-2011
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In mast furlers are a disaster, how does one control the mainsail shape if one can not change the Pre bend of the mast.....

Open up the leech ?
Tighten up the forestry ?

They also tend to have massive sections which eliminates 20-30% of the mainsail from having effective laminar flow.
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post #56 of 56 Old 04-25-2011
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Quote:
Originally Posted by WDSchock View Post
.....how does one control the mainsail shape if one can not change the Pre bend of the mast.........
The only large impact shape adjustment we can make is with the outhaul. It is pretty effective to alter the curve front to back, since the foot is loose from the boom, and we use it to match the genoa after it has been trimmed.. The vang and travelers can be used too, but more subtly.

Since our boat was originally designed to have a furling main, I suspect the 135 genoa (you can fly a 150 as well), was designed to do most of the work. It certainly does. In fact, deep downwind, we are often tempted to reef or entirely furl the main just to get it out of the way. We are very pleased with performance overall and mainsail shape is not usually a concern.


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